The upper coin is a Ch'ing Dynasty Emperor Hsien Feng 50 Cash from the Board of Revenue Mint in Peking. It was made in the early 1850's. The other coin is a fantasy -- no such coin was ever made. The obverse claims to be a coin of Emperor K'ang Hsi (1662-1722), but no such coin was ever made. The reverse is a copy of a 1000 Cash coin of the 1850's, from the Board of Revenue Mint.